Electrochemical and Corrosion Response of Commercially Pure Aluminum Alloyed with Binary Additions of Strontium
Electrochemical and corrosion response of commercially pure aluminum alloyed with binary additions of strontium
Materials Literature
文献浏览
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Effect of Trace Elements Lead and Tin on Anodic Activation of AA8006 Aluminum Sheet
Most commercial aluminum alloys, when heat treated in air at 600°C, become activated anodically in chloride solution as a result of segregation of a nanometer size Pb-rich film between the aluminum matrix and thermally-formed γAl 2 O 3 . However, certain recycled alloys, such as AA8006, can be activated at lower annea…
Development of Antibiotics Impregnated Nanosized Silver Phosphate‐Doped Hydroxyapatite Bone Graft
Nanosized Ag3PO4 loaded hydroxyapatite which was prepared by a novel low temperature phosphorization of 3D printed calcium sulfate dihydrate at the nominal silver concentration of 0.001 M and 0.005 M was impregnated by two antibiotics including gentamicin and vancomycin. Phase composition, microstructure, antibiotics…
Proof of Concept for the Dual Membrane Cell
The Dual Membrane Cell (DM-Cell) is an innovative concept for solid state fuel cells operating in the temperature range 600–700°C. It is based on a junction between the cathode/electrolyte part of a Solid Oxide Fuel Cell (SOFC) and the anode/electrolyte part of a protonic SOFC (PCFC) via a mixed H + and O 2− conductin…
The insertion of gas molecules into polyhedral oligomeric silsesquioxane (POSS) cages: understanding the energy of insertion using quantum chemical calculations
Density functional theory (DFT) calculations using the B3LYP and ωB97XD functionals and Møller-Plesset (MP2) calculations have been used to determine the energy of insertion of seven molecules (CO2, N2, O2, CO, CH4, He and H2O) into two sizes of polyhedral oligomeric silsesquioxane (POSS) cages, T10 and T12. Geometry…
Advanced energy recovery concepts for negative ion beamlines in fusion power plants
A key factor in determining the economic viability of fusion power is the minimization of the recirculating power required to operate the plant. Neutral beam systems for heating and current drive contribute significantly to this recirculating power. The use of energy recovery is one method of reducing the neutral beam…
Stability and solid-state polymerization reactivity of imidazolyl- and benzimidazolyl-substituted diacetylenes: pivotal role of lattice water
1,6-Bis(1-imidazolyl)-2,4-hexadiyne (1) and 1,6-bis(1-benzimidazolyl)-2,4-hexadiyne (5) have been prepared by a novel method that consists in refluxing excess imidazole and benzimidazole with 2,4-hexadiyne-1,6-diol bis(p-toluenesulfonate), pTS (3). This procedure is a viable alternative to the widely used Hay coupling…
Structural Properties and Temperature Behaviour of Optical Absorption Edge in Polycrystalline ZnO:X (Cu,Ag) Films
Silver-and copper-doped ZnO lms were prepared by radio-frequency magnetron sputtering on glass substrates. The inuence of dopants content on the structural, morphological properties as well as on evolution of the optical absorption edge was considered. It has been found that Ag-and Cu-doped ZnO lms are characterized b…
Perfect metamaterial absorbers in the ultra-high frequency range
Multi-resonant metamaterial absorbers based on High-Impedance Surfaces (HIS) are proposed to be employed as a trasponder for Radio Frequency IDentifcation (RFID). The HIS comprises a Frequency Selective Surface (FSS) whose unit cell is formed by several concentric loop resonators. Every absorption peak of the reflecti…
Thermoelectric Properties of Perovskite-Type Oxide Ca–Mn–O System in Relation to A-Site Vacancies
The orthorhombic perovskite-type oxide systems, Ca1−xNdxMnO3 and Ca1−xNd2x/3□x/3MnO3 (□ indicates A-site vacancy) were synthesized by a standard ceramic technique. Thermoelectric properties such as Seebeck coefficient (S), electrical conductivity (σ) and thermal conductivity (κ) were evaluated as functions of temperat…
Gross Alpha and Beta activity Concentrations and Committed Effective Dose due to Intake of Groundwater in Ado-Ekiti Metropolis; the Capital City of Ekiti State, Southwestern, Nigeria
The gross alpha and beta activity concentrations in dug well water in Ado-Ekiti, Ekiti State, southwestern Nigeria were determined in order to estimate the committed effective dose from intake of the alpha and beta emmiters. The Gas-flow proportional counter (Eurisys Measure IN20 low-background multiple (eight) channe…
Mechanical properties of direct and indirect composites after storage for 24 hours and 10 months.
OBJECTIVE: The objective of this study was to evaluate the diametral tensile strength (DTS) and Knoop hardness (KH) of direct (Filtek Z350-3M/ESPE and Charisma-Heraeus Kulzer) and indirect composites (Sinfony-3M/ESPE and Signum-Heraeus Kulzer) kept in storage for two periods of time, 24 hours and 10 months, in distill…
Cytotoxicity of ICD-85 NPs on Human Cervical Carcinoma HeLa Cells through Caspase-8 Mediated Pathway.
The biological application of nanoparticles (NPs) is a rapidly developing area of nanotechnology that raises new possibilities in the treatment of human cancers. The cytotoxicity was evaluated by MTT and LDH assays. The apoptotic effect of free ICD-85 and ICD-85 NPs on HeLa cells was assessed using caspase-8 colorimet…
Self-assembled polymer layers of linear polyethylenimine for enhancing electrochromic cycling stability
A self-assembled polymer of linear polyethylenimine (LPEI) on indium tin oxide (ITO) is found to stabilize the titanium-doped vanadium oxide film. After modification by LPEI, the oxide film shows good cycling stability, and sustains over 1500 cycles in a three-electrode system, a remarkable improvement compared to tha…
Plasma-Assisted Production of Carbon Black and Carbon Nanotubes from Methane by Thermal Plasma Reform
A reforma de fontes de carbono por plasma térmico de argônio de elevada capacidade calorífica é um dos métodos mais promissores na síntese de novos materiais. Um método para a obtenção de negro de carbono e nanotubos de carbono através da pirólise do metano por plasma térmico de corrente contínua é relatado no present…
Interfacial assembly of amphiphilic styrylquinoxalines: alkyl chain length tunable topochemical reactions and supramolecular chirality
A series of styrylquinoxaline alkoxy derivatives, 3-(4-(alkoxy)styryl)quinoxalin-2(1H)-one substituted with different alkyl chain lengths (SQCn, n = 12, 14, 16, 18), have been synthesized. The air/water interfacial assemblies of these compounds fabricated using the Langmuir-Blodgett technique were studied. The assembl…
Lateral sliding bridge flap technique along with platelet rich fibrin and guided tissue regeneration for root coverage
Gingival recession is defined as the apical migration of the gingival margin with exposure of root surfaces. The etiology of the condition is multifactorial. Given the high rate of gingival recession defects among the general population, it is imperative that dental practitioners have an understanding of the etiology,…
Strategically designed porous polysilicate acid/graphene composites with wide pore size for methylene blue removal
Polysilicate acid/graphene composites were synthesized in the oil phase using a facile one-pot method. Si-based groups, Cl, and residual oxygenated functional groups effectively reduced the irreversible aggregation process. Stacking sheets with these groups tend to form wide pores. These pores were not formed in the g…
Electrochemical response of hydroxyurea by different voltammetric techniques at carbon paste electrode
A simple and novel electroanalysis of hydroxyurea (HU) drug at carbon paste electrode has been investigated for the first time using cyclic, linear sweep and differential pulse voltammetric techniques. The oxidation of HU is irreversible and exhibits a diffusion controlled process and is pH dependent. The oxidation me…
The role of non-stoichiometric defects in radiation damage evolution of SrTiO3
The response of polycrystalline SrTiO3, fabricated by the flash sintering method, to ion beam irradiation was investigated by means of transmission electron microscopy (TEM) and atomic scale modeling. The samples were implanted with 250 keV Ne ions at fluences between 1.11 × 1016 and 2.25 × 1016 ions per cm2 at room t…